* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Tahoma;
}

header h1 {
    margin-left: 100px;
    margin-top: 80px;
    font-size: 80px;
    font-family: sans-serif;
}

header img {
    margin-right: 100px;
    float: right;
}

nav {
    margin-top: 60px;
    background-color: rgb(240, 101, 42);
    padding: 20px;
    width: 100%;
    text-align: center;
    font-size: 50px;
    border-bottom: 7px solid black;
}

nav a {
    text-decoration: none;
    color: black;
    padding: 20px;
    transition: 0.5s ease;
    font-family: sans-serif;
}

nav a:hover {
    color: white;
}

section {
    margin-left: 400px;
    margin-top: 90px;
}

.code {
    float: right;
}

footer {
    margin-left: 830px;
    margin-top: 50px;
    background-color: rgb(240, 101, 42);
    padding: 20px;
    margin-left: 0px;
}

footer p {
    font-size: 20px;
    font-weight: bold;
    text-align: end;
}

/* mobiteli */

@media (max-width: 768px) {
    header h1 {
        font-size: 50px;
        margin-left: 20px;
        margin-top: 20px;
    }

    header img {
        width: 100px;
        margin-right: 20px;
    }

    nav {
        font-size: 30px;
        padding: 10px;
    }

    nav a {
        padding: 10px;
    }

    section {
        margin-left: 20px;
        margin-top: 20px;
    }

    .code {
        float: none;
        margin-top: 0px;
        width: 45%;
    }

    section img {
        width: 45%;
        height: auto;
    }
}